英 [ˈleŋθən] 美 [ˈleŋθən]
vt. 使延长；加长
vi. 延长；变长
第三人称单数lengthens
现在分词lengthening
过去式lengthened
过去分词lengthened
lengthen /ˈlɛŋkθən/ TEM4 [ lengthening lengthened lengthens ]
及物动词/不及物动词 When something lengthens or when you lengthen it, it increases in length. 使变长; 变长
The evening shadows were lengthening.
傍晚的影子正在变长。
及物动词/不及物动词 When something lengthens or when you lengthen it, it lasts for a longer time than it did previously. 使延长; 延长
Vacations have lengthened and the work week has shortened.
假期延长了，工作周变短了。
make longer
become long or longer
In Spring, the days lengthen
拖长(元音)音长
延长
15、拉长（Lengthen）：可以修改直线的长度或圆弧的包含角。 菜单：“修改”——“拉长” 提示：可以用来标注对象的长度大小及包含角度。
多以鼻头这个位置要想得到提升，不管是向前探出 （projection），还是鼻头向下拉延长（lengthen），是需要材料的，就是我们说的软骨。很多时候，需要的量非常大，超出我们的想象，所以单用耳软骨很难漂亮地完成工作。
（2）红柱加长(Lengthen)：股价将连续上涨，对应政策是持有。其含义是多方的力道正在加强，空方毫无还手之力。
... LEADER：创建一条引线将注释与一个几何特征相连 LENGTHEN：拉长对象 LINE：创建直线段 ...
long 渴望；热望
When 28% of English children aged two to 15 are obese, a national shift on the scale achieved by Leeds would lengthen hundreds of thousands of lives.
英国2至15岁儿童中有28%患有肥胖症，利兹市所实现的全国性转变将延长数十万人的寿命。
Conventional wisdom would seem to suggest that companies have no incentive to lengthen the life cycle of their products and reduce the revenue they would get from selling new goods.
传统观点似乎认为，企业在延长产品生命周期和减少销售新产品的收入方面是没有动力的。
I need to lengthen this skirt.
我需要把裙子放长。
International health groups say earlier treatment can lengthen the lives of HIV sufferers.
VOA : standard.2009.12.02
That's the harmonic series that's on that, and what the valves do is they shorten and lengthen that vibrating column of air very much like the cello string on the fingerboard.
这就是圆号上的泛音列,活瓣的作用是增长或减短,空气柱的高度,很像大提琴指板上的弦
聆听音乐课程节选 : 耶鲁公开课
However, in the very long-term the two year cycle is bound to lengthen similar to PCs.
FORBES: Dish-Softbank Pursuit Of Sprint Has Positive Implications For Apple
Outside the Fatih mosque, children play football as the shadows lengthen and the hot day cools.
He wants to employ more staff and lengthen the operating hours in the group's 100 biggest hypermarkets.